Abstract The state of charge (SOC) a battery is one the most important indicators to monitor in Battery Management System (BMS). It very accurately and quickly predict for safe driving electric vehicles efficient utilization equipment. However, several factors, such as working environment aging degree battery, can have coupling effect on internal battery. This leads it difficult SOC For this pu...

Lithium-ion batteries are widely used in new energy vehicles, storage systems, aerospace and other fields because of their high density, long cycle life high-cost performance. Accurate equivalent modeling, adaptive internal state characterization accurate charge estimation the cornerstones expanding application market lithium-ion batteries. According to highly nonlinear operating characteristic...

In this paper, a new model based on the thevenin equivalent circuit for investigating the ultra-saturation phenomenon during the energization of a loaded power transformer is presented and its effect on the differential protection of the transformer is considered. The ultra-saturation phenomenon causes the mal-operation of the power transformer differential protection. So, the description a...

A real-time determination of battery parameters is challenging because batteries are non-linear, time-varying systems. The transient behaviour of lithium-ion batteries is modelled by a Thevenin-equivalent circuit with two time constants characterising activation and concentration polarization. An experimental approach is proposed for directly determining battery parameters as a function of phys...

The operating temperature of a battery energy storage system (BESS) has significant impact on performance, such as safety, state charge (SOC), and cycle life. For weather-resistant aluminum batteries (AlBs), the precision SOC is sensitive to variation, errors in AlBs may occur. In this study, combination experimental charge/discharge data 3D anisotropic homogeneous (Ani-hom) transient heat tran...

This paper presents a new control technique based on uncertain fuzzy models for handling uncertainties in nonlinear dynamic systems. approach is applied the stabilization of multimachine power system subject to disturbances. In this case, state-feedback controller parallel distributed compensation (PDC) system, where design laws Lyapunov function method and stability conditions are solved using...

With the rapid growth of usage of phasor measurement units (PMUs) for modern power grids, the application of synchronized phasors (synchrophasors) to real-time voltage security monitoring has become an active research area. This paper presents a novel approach for fast determination of loading margin using PMU data from a wide-area monitoring system (WAMS) to construct the voltage stability bou...

Sound pressure level in-situ measurements are sensitive to standing-wave pressure minima and have the potential to result in over-amplification with risk to residual hearing in hearing-aid fittings. Forward pressure level (FPL) quantifies the pressure traveling toward the tympanic membrane and may be a potential solution as it is insensitive to ear-canal pressure minima. Derivation of FPL is de...